An electronic device includes: at least one communication module, a memory, and a processor operably connected to the at least one communication module and the memory. The processor is configured to determine transmission offset information or contention phase information, which is associated with first communication, broadcast a first message including the transmission offset information or contention phase information by using the at least one communication module, receive at least one second message from at least one external electronic device via the at least one communication module, in response to the first message, and change the transmission offset information or contention phase information, on the basis of the at least one second message.

A chip package includes a chip configured to generate and/or receive a signal; a laminate substrate including a substrate integrated waveguide (SIW) for carrying the signal, the substrate integrated waveguide including a chip-to-SIW transition structure configured to couple the signal between the SIW and the chip and a SIW-to-waveguide transition structure configured to couple the signal out of the SIW or into the SIW, wherein the SIW-to-waveguide transition structure includes a waveguide aperture; and a plurality of electrical interfaces arranged about a periphery of the waveguide aperture, the plurality of electrical interfaces configured to receive the signal from the SIW-to-waveguide transition structure and output the signal from the chip package or to couple the signal to the SIW-to-waveguide transition structure and into the chip package.

A system and a method are provided for achieving long range, over the horizon (OTH), persistent surveillance, alerting, tracking and situational awareness against small, low radar cross section moving targets. The system and method use one or more tethered unmanned arial systems, or unmanned arial vehicles, to lift components including a radar antenna to a height above nearby obstacles or much higher. The system and method can also be used for subsurface radar detection and tracking applications, as well as communications with submarines.

In one aspect, an electronic device for continuous and simultaneous powering and data transfer is provided, the electronic device comprising: an inductive power receiver operable to generate a power signal from a sensed magnetic field, the power signal; an LC tank and diode pair electrically coupled to the power receiver and operable to obtain the power signal, the LC tank and diode pair cooperating to generate a corresponding clipped signal thereof; and an antenna comprising a high-pass filter, the antenna electrically coupled to the diode pair and operable to emit a pulse-train by high-pass filtering the clipped signal.

Methods are provided for UWB ranging based on contention-based multiple access. A method performed by a first UWB device includes transmitting an IM for initiating UWB ranging, receiving an AM from a second UWB device within a contention period, transmitting a first RM, receiving a second RM corresponding to the first RM from the second UWB device, and transmitting an FM.

The present disclosure relates to an apparatus and method for synthetically making an ultra-wide imaging bandwidth in millimeter-wave frequencies, resulting in improved image resolutions to values previously unattained. The synthetic approach sums up a number of available sub-bands to build an unavailable ultra-wideband system. Each sub-band contains a transceiver unit which is optimized for operation within that specific sub-band. The number and position of the sub-bands can be adjusted to cover any frequency range as required for the specific application.

A method for providing bi-directional ultra-wide band (UWB) ranging is provided. The method by a first ultra-wide band (UWB) device includes transmitting an initiation message for initiating UWB ranging, receiving at least one device access message from at least one second UWB device within a contention period, transmitting at least one reply message, receiving at least one device reply message corresponding to the at least one reply message from one or more of the at least one second UWB device, and transmitting, to the one or more second UWB device, a final message based on UWB ranging performed using the device access message, the reply message, and the device reply message.

A self-diagnosis device of a radar system or a phased-array antenna module including a general-purpose multi-channel IC and a transmission phase shifter IC having a plurality of transmission output terminals and reception terminals is configured to perform a self-diagnosis of the transmission phase shifter by utilizing a signal that is generatable by the general-purpose multi-channel IC, which is enabled by a built-in self-test circuit that (A) generates a self-diagnosis monitor signal converted into a low frequency band, which is a mixture of (i) a self-diagnosis signal generated from (a) a third output signal and a fourth output signal output in sync from same PLL with (b) a first output signal to be supplied to a reception frequency converter of the general-purpose multi-channel IC, and (ii) a composite signal of the transmission channel, and (B) analyzes a phase of the self-diagnosis monitor signal.

A method for generating ultrawideband pulsed microwave signals from optical field ionization of a gas with an ultrashort laser pulse, where the amplitude and frequency of the signals can be controlled via the characteristics of the laser pulse and/or the gas. The center frequency of the spectrum of the microwave signal can be controlled by changing the laser pulse energy. The amplitude of the microwave signal can be controlled by changing the wavelength of the laser pulses. The amplitude and frequency of the microwave signal can be tuned by controlling the pressure of the gas medium. The location at which the microwave signal is generated can be controlled by controlling the location at which the laser pulse creates a plasma. Interference among microwave signals resulting from multiple laser-produced plasmas can be used to construct an ultrawideband microwave signal having a predetermined amplitude and frequency.

A mobile terminal includes: a UWB chip, configured to output UWB pulse signals of a first preset quantity in a signal cycle and further configured to generate a frame of detection data on the basis of echo signals of signal cycles of a second preset quantity; a switchover module, configured to control an antenna module to be switched to a target antenna, in which the target antenna includes a first target antenna configured to radiate the UWB pulse signals into space and a second target antenna configured to receive echo signals; and a processor, configured to recognize a gesture on the basis of at least one frame of detection data.